High pressure hose

Abstract

A hose includes a reinforcement structure and a layer exterior to the reinforcement structure. The layer includes a plurality of extensions projecting outwardly. Wear of the plurality of extensions provides a visual indication of the degree of wear of the hose.

1 . A hose, comprising:
 a reinforcement structure;   a layer exterior to the reinforcement structure,   wherein the layer comprises a plurality of extensions projecting outwardly such that wear of the plurality of extensions provides a visual indication of the degree of wear of the hose.   
     
     
         2 . The hose of  claim 1 , wherein the plurality of extensions extend longitudinally along the length of hose. 
     
     
         3 . The hose of  claim 2 , wherein the plurality of extensions are uniformly sized and spaced around the hose. 
     
     
         4 . The hose of  claim 3 , wherein the plurality of extensions project outwardly from the hose by at least one-sixteenth of an inch. 
     
     
         5 . The hose of  claim 4 , wherein the layer is colored a first color, and wherein the hose further comprises a second layer formed from thermoplastic and colored a second color that is different than the first color. 
     
     
         6 . The hose of  claim 4 , wherein the layer further comprises U-shaped grooves between the extensions. 
     
     
         7 . The hose of  claim 6 , wherein outside ends of the plurality of extensions are flat. 
     
     
         8 . The hose of  claim 7 , wherein the plurality of extensions consists of at least ten but no more than twenty extensions. 
     
     
         9 . The hose of  claim 1 , wherein the reinforcement structure comprises a mesh of strengthening members, wherein the layer is formed from thermoplastic, and wherein the mesh of strengthening members is formed from metal fibers. 
     
     
         10 . The hose of  claim 1 , wherein the hose is configured to withstand internal pressures exceeding 1000 psi, at least in part due to the reinforcement structure. 
     
     
         11 . A pressure washer, comprising:
 a pump;   a spray gun; and   a hose configured to connect the spray gun to the pump,   wherein the hose comprises a plurality of extensions projecting outwardly from the hose such that wear of the plurality of extensions provides a visual indication of the degree of wear of the hose.   
     
     
         12 . The hose of  claim 11 , wherein the plurality of extensions extend longitudinally along the length of hose. 
     
     
         13 . The hose of  claim 11 , wherein the plurality of extensions are uniformly sized and spaced around the hose. 
     
     
         14 . The hose of  claim 13 , wherein the hose includes a first layer that is colored a first color, wherein the first layer comprises the plurality of extensions, and wherein the hose further comprises a second layer located interior to the first layer and colored a second color that is different than the first color. 
     
     
         15 . The hose of  claim 11 , wherein the plurality of extensions project outwardly from the hose by at least one-sixteenth of an inch. 
     
     
         16 . The hose of  claim 11 , wherein the plurality of extensions consists of at least ten but no more than twenty extensions. 
     
     
         17 . The hose of  claim 11 , wherein the hose further comprises U-shaped grooves between the extensions. 
     
     
         18 . The hose of  claim 17 , wherein outside ends of the extensions are flat. 
     
     
         19 . A method of manufacturing a hose, comprising:
 providing an extrusion die; and   extruding a layer of a hose using the extrusion die, the layer comprising a plurality of extensions projecting outwardly such that wear of the plurality of extensions provides a visual indication of the degree of wear of the hose.   
     
     
         20 . The method of  claim 19 , wherein the extrusion die comprises a plurality of fingers that are inversely contoured to match the plurality of extensions of the hose.